www-client/firefox: drop IPA cdtor workaround for GCC >=8.3

Package-Manager: Portage-2.3.62, Repoman-2.3.12
Signed-off-by: Thomas Deutschmann <whissi@gentoo.org>

diff --git a/www-client/firefox/firefox-65.0.2.ebuild b/www-client/firefox/firefox-65.0.2.ebuild
index b869ca7f95a02f2a463b73e3040643f81a00e1ed..df3ae98aab1017c4be12bdb6d3227fff60757f6f 100644 (file)
--- a/www-client/firefox/firefox-65.0.2.ebuild
+++ b/www-client/firefox/firefox-65.0.2.ebuild
@@ -30,9 +30,9 @@ fi
 PATCH="${PN}-65.0-patches-04"
 MOZ_HTTP_URI="https://archive.mozilla.org/pub/${PN}/releases"
 
-inherit check-reqs flag-o-matic toolchain-funcs eutils gnome2-utils llvm \
-               mozcoreconf-v6 pax-utils xdg-utils autotools mozlinguas-v2 \
-               virtualx
+inherit check-reqs eapi7-ver flag-o-matic toolchain-funcs eutils \
+               gnome2-utils llvm mozcoreconf-v6 pax-utils xdg-utils \
+               autotools mozlinguas-v2 virtualx
 
 DESCRIPTION="Firefox Web Browser"
 HOMEPAGE="https://www.mozilla.com/firefox"
@@ -378,10 +378,17 @@ src_configure() {
                        fi
 
                        if ! use cpu_flags_x86_avx2 ; then
-                               # due to a GCC bug, GCC will produce AVX2 instructions
-                               # even if the CPU doesn't support AVX2, https://gcc.gnu.org/ml/gcc-patches/2018-12/msg01142.html
-                               einfo "Disable IPA cdtor due to bug in GCC and missing AVX2 support -- triggered by USE=lto"
-                               append-ldflags -fdisable-ipa-cdtor
+                               local _gcc_version_with_ipa_cdtor_fix="8.3"
+                               local _current_gcc_version="$(gcc-major-version).$(gcc-minor-version)"
+
+                               if ver_test "${_current_gcc_version}" -lt "${_gcc_version_with_ipa_cdtor_fix}" ; then
+                                       # due to a GCC bug, GCC will produce AVX2 instructions
+                                       # even if the CPU doesn't support AVX2, https://gcc.gnu.org/ml/gcc-patches/2018-12/msg01142.html
+                                       einfo "Disable IPA cdtor due to bug in GCC and missing AVX2 support -- triggered by USE=lto"
+                                       append-ldflags -fdisable-ipa-cdtor
+                               else
+                                       einfo "No GCC workaround required, GCC version is already patched!"
+                               fi
                        else
                                einfo "No GCC workaround required, system supports AVX2"
                        fi